Gas-sensing optrode

Patent · Tue Apr 12 04:00:00 EDT 1988

OSTI ID:7019982

Hirschfeld, T B

An optrode is provided for sensing dissolved gases or volatile components of a solution. A fiber optic is provided through which light from an associated light source is transmitted from a first end to a second end. A bubble forming means, such as a tube, is attached to the second end of the fiber optic, and an indicator material is disposed in cooperation with the bubble forming means adjacent to the second end of the fiber optic such that it is illuminated by light emanating from the second end. The bubble forming means causes a gas bubble to form whenever the optrode is immersed in the fluid. The gas bubble separates the indicator material from the fluid. Gases, or other volatile components, of the fluid are sensed as they diffuse across the gas bubble from the fluid to the indicator material. 3 figs.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Berkeley, CA (United States)
• Patent Number(s): A; US 4737343
• Application Number: PPN: US 6-820122
• OSTI ID: 7019982
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
CHEMICAL ANALYSIS
DESIGN
DIFFUSION
DISSOLVED GASES
FIBERS
FLUIDS
GASES
LIGHT TRANSMISSION
MATTER
MEASURING INSTRUMENTS
OPERATION
OPTICAL FIBERS
QUALITATIVE CHEMICAL ANALYSIS
SOLUTES
VOLATILE MATTER